h6. What
We should expose a function that allows the end developer to check if the underlying device has a lock screen enabled.
h6. Why
Adding a lock screen a lock screen enhances device security and is used as a seed for various encryption functions in Android. Providing a check to see if the device lock is set to and end developer will be a helpful feature.
h6. How
We can use the Android KeyguardManager class to check if the device has a lock screen set.
{code:java}
/**
* Detect if the device has a lock screen setup (pin, password etc).
*/
public void boolean detectDeviceLock() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(KEYGUARD_SERVICE);
if (keyguardManager.isDeviceSecure()) {
return true;
} {
return false;
}
} else {
return false;
}
}
{code}
*Note*: We should make a note in the docs that this is only available from Android M onwards.
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